The Influence of Environmental Factors a
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Josรฉ Prenda; Alfonso Gallardo
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Article
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1992
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John Wiley and Sons
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English
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## Abstract Some aquatic oligochaete species, mainly certain naidids and tubificids, are often associated with polluted environments, with high levels of organic matter and oxygen deficit. However, in the stations sampled in the Guadaira river basin, which can be arranged on an axis of organic poll